Samsung Galaxy A56 5G (SM-A566B) / Samsung Galaxy S24 (SM-S921B)

Samsung Galaxy A56 5G (SM-A566B): SM-A566B (Europe/UK); the listed configuration is 8 GB / 256 GB, with 8/128 and 12/256 GB depending on market. The Galaxy A55 (previous generation) and Galaxy A36 5G are separate models.

Samsung Galaxy S24 (SM-S921B): Galaxy S24, global SM-S921B (8 GB / 128 GB, Nano-SIM + eSIM). The US SM-S921U uses a different processor; the Galaxy S24+ and S24 Ultra are separate models.

SpecificationSamsung Galaxy A56 5G (SM-A566B)Samsung Galaxy S24 (SM-S921B)
Release year20252024
Display6.7-inch FHD+ Super AMOLED, 2340 × 1080; up to 120 Hz refresh; up to 1,200 nits in High Brightness Mode

120 Hz makes scrolling smoother; 1,200 nits is reached in High Brightness Mode, which switches on automatically in sunlight. Allowing for the rounded corners, the visible area is 6.5 inches.

Samsung		6.2-inch (6.0-inch with rounded corners) Dynamic AMOLED 2X; 2340 × 1080 (FHD+); adaptive 1–120 Hz; Vision Booster

The adaptive refresh rate drops to 1 Hz on static content to save power; Vision Booster adjusts tone and contrast in bright light.

Samsung
GlassCorning Gorilla Glass Victus+ front and back (camera glass excluded)

Glass on the back as well is uncommon in this class; Samsung notes the camera lens covers are not included.

Samsung		—
ProcessorExynos 1580 (4 nm); octa-core: 1 × 2.9 GHz, 3 × 2.6 GHz, 4 × 1.9 GHz; Xclipse 540 GPU

Samsung says a larger vapor chamber than the previous generation spreads heat better in games and multitasking.

Samsung		10 cores; 3.2 GHz, 2.9 GHz, 2.6 GHz and 1.95 GHz clusters

Samsung notes that the processor varies by market; the US SM-S921U does not use the same chip as this global model.

Samsung
Memory and storage8 GB RAM, 256 GB storage (234.4 GB available); 8/128 and 12/256 GB options depending on market; no microSD slot

With no card slot, storage cannot be expanded later, so the capacity choice matters for heavy photo and video use.

Samsung		8 GB RAM; 128 GB (about 103.9 GB available)

The series also has 256 and 512 GB and 12 GB RAM configurations; there is no microSD slot.

Samsung
Rear cameras50MP wide, ƒ/1.8, autofocus and OIS; 12MP ultra-wide, ƒ/2.2; 5MP macro, ƒ/2.4; 10× digital zoom

Optical stabilisation (OIS) is on the main camera only and reduces shake at night and in video. There is no telephoto camera; zoom is digital.

Samsung		50 MP wide (ƒ/1.8, OIS, 85°); 10 MP 3x telephoto (ƒ/2.4, 36°); 12 MP ultra-wide (ƒ/2.2, 120°)

3x optical zoom uses the separate telephoto lens; the 2x option crops the main sensor at optical quality, and digital zoom reaches 30x.

Samsung
Front camera and video12MP front camera, ƒ/2.2, fixed focus; 4K 30 fps recording on the rear camera, 240 fps slow motion in HD; 10-bit HDR video on the front camera

4K recording is limited to 30 fps; smoother video needs a drop to 1080p.

Samsung		—
Battery and charging5,000 mAh (typical); up to 29 hours video playback; 45 W Super Fast Charging 2.0 (adapter sold separately)

45 W speeds need a 45 W USB PD PPS adapter; lower-powered adapters take longer.

Samsung		4000 mAh typical (3880 mAh rated); about 50% in 30 minutes with a 25 W adapter and 3 A cable; Fast Wireless Charging 2.0; Wireless PowerShare

Wireless PowerShare lets the back of the phone wirelessly charge small devices such as a watch or earbud case. No adapter is included.

Samsung
Connectivity5G Sub-6; Wi-Fi 6 (802.11ax, 2.4/5 GHz); Bluetooth 5.3; NFC; USB-C (USB 2.0); no 3.5 mm headphone jack

USB 2.0 is slower than USB 3 ports for large video transfers and has no video output.

Samsung		5G; Wi-Fi 6E (2.4 + 5 + 6 GHz); Bluetooth 5.3; NFC; USB Type-C (USB 3.2 Gen 1)

The 6 GHz band needs a Wi-Fi 6E router.

Samsung
SIMNano-SIM and eSIM; SIM+SIM, SIM+eSIM or dual eSIM combinations Samsung—
Location and sensorsGPS, GLONASS, BeiDou, Galileo, QZSS; in-display fingerprint, accelerometer, gyro, geomagnetic, light and virtual proximity sensor

A virtual proximity sensor uses software and other sensors rather than dedicated hardware to turn the screen off during calls.

Samsung		GPS, GLONASS, BeiDou, Galileo, QZSS; accelerometer, barometer, fingerprint, gyro, geomagnetic, Hall, light and proximity sensors Samsung
Water and dust resistanceIP67 (tested in up to 1 m of fresh water for up to 30 minutes)

This is no guarantee against seawater, pool water or pressurised water.

Samsung		—
Software and updatesShips with One UI 7; 6 generations of Android/One UI upgrades and 6 years of security updates (until 31 March 2032 on the UK page)

This is the longest support yet in the Galaxy A series; rollout timing can vary by country and carrier.

Samsung		—
SecuritySamsung Knox Vault, Auto Blocker, Theft Protection

Knox Vault stores sensitive data such as PINs and passwords in an isolated hardware area separate from the main processor.

Samsung		—
Size and weight162.2 × 77.5 × 7.4 mm; 198 g Samsung147.0 × 70.6 × 7.6 mm; 167 g Samsung
ColoursAwesome Graphite, Awesome Lightgrey, Awesome Olive, Awesome Pink SamsungOnyx Black, Marble Grey, Cobalt Violet, Amber Yellow; extra online colours Samsung
Model code—SM-S921B/DS; Nano-SIM + eSIM or dual eSIM Samsung
Video—8K (7680 × 4320) at 30 fps; slow motion at UHD 120 fps and FHD 240 fps Samsung
Front camera—12 MP, ƒ/2.2, 80° Samsung
Rated battery life—Up to 29 hours of video playback; rated for at least 2000 charge cycles; energy efficiency class A

The 2000-cycle figure comes from the EU label, which targets the battery keeping a set share of its capacity over that span.

Samsung
Operating system—Shipped with Android 14 and One UI 6.1; seven generations of OS upgrades and seven years of security updates

Samsung’s UK page lists security updates for this model until 31 January 2031; timing can vary by market.

Samsung
Durability—IP68 (up to 1.5 m of fresh water for up to 30 minutes) Samsung